BetterInteractiveViewerState<T extends BetterInteractiveViewer> class abstract

Inheritance

Properties

animation ↔ Animation<Offset>?
getter/setter pairinherited
childBoundaryRect → Rect
The _boundaryRect is calculated by adding the boundaryMargin to the size of the child.
no setterinherited
childKey → GlobalKey<State<StatefulWidget>>
finalinherited
context → BuildContext
The location in the tree where this widget builds.
no setterinherited
controller ↔ AnimationController
getter/setter pairinherited
currentAxis ↔ Axis?
getter/setter pairinherited
currentRotation ↔ double
getter/setter pairinherited
doubleTabZoomOutScale → double
To determine the scale to zoom out to when double tapping
no setterinherited
doubleTapDetails ↔ TapDownDetails?
Used for getting position of double tap for zoom in and out
getter/setter pairinherited
doubleTapZoomOutBehaviour → DoubleTapZoomOutBehaviour
How to zoom out when double tapping
no setteroverride
gestureType ↔ GestureType?
getter/setter pairinherited
hashCode → int
The hash code for this object.
no setterinherited
inNonCoveringZoomHorizontal ↔ bool
getter/setter pairinherited
inNonCoveringZoomVertical ↔ bool
getter/setter pairinherited
mounted → bool
Whether this State object is currently in a tree.
no setterinherited
nonCoveringZoomAlignmentHorizontal → HorizontalNonCoveringZoomAlign
How to align the child on non covering zoom for Horizontal axis
no setteroverride
nonCoveringZoomAlignmentVertical → VerticalNonCoveringZoomAlign
How to align the child on non covering zoom for Vertical axis
no setteroverride
overrideSize → Size?
If not null, overrides the size of the child.
no setter
parentKey → GlobalKey<State<StatefulWidget>>
finalinherited
realChildSize ↔ Size?
Set this value if the child has a different size than returned by its render box
getter/setter pairinherited-setteroverride-getter
rebuildNotifier → RebuildNotifier
Used to notify to rebuild the the transform without rebuilding the child and the listeners.
final
referenceFocalPoint ↔ Offset?
getter/setter pairinherited
rotationStart ↔ double?
getter/setter pairinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scaleAnimation ↔ Animation<double>?
getter/setter pairinherited
scaleAnimationFocalPoint ↔ Offset
getter/setter pairinherited
scaleController ↔ AnimationController
getter/setter pairinherited
scaleStart ↔ double?
getter/setter pairinherited
scrollbarController ↔ ScrollbarControllerEncapsulation?
getter/setter pairinherited
setToAfterAnimate ↔ Matrix4?
getter/setter pairinherited
transformationController ↔ TransformationController?
getter/setter pairinherited
transformForRender → Matrix4
The actual transform you should use for rendering
no setterinherited
widget → T
The current configuration.
no setterinherited
widgetViewport → Rect
no setterinherited

Methods

activate() → void
Called when this object is reinserted into the tree after having been removed via deactivate.
inherited
afterAnimate() → void
inherited
afterResize({bool forceUpdate = true}) → void
Cal this method after resize
inherited
afterZoom() → void
Realign the transformation controllers value after a nonCoveringZoom (child is smaller than viewport) to make sure it can be displayed correctly
inherited
animateTo(Matrix4 newMatrix, {Duration duration = const Duration(milliseconds: 150), Curve curve = Curves.linear, bool noTranslation = false, dynamic noZoom = false, Offset? focalPoint}) → void
Automatically animates to a new point
inherited
build(BuildContext context) → Widget
Build the Widget. Instead of overriding this function, override buildChild so that all gesture detectors can be set up automatically.
override
buildAroundTransformAndScrollbar(BuildContext context, Widget child) → Widget
Gets called every time the transform changes. Can be used to a widget over the scrollbars and the transformed widget, e.g. a indicator for the zoom.
buildChild(BuildContext context) → Widget
Builds the child.
override
buildTransformAndScrollbars(BuildContext context, Widget child) → Widget
Gets called every time the transform changes. The default implementation returns a ListenableBuilder that listens to the rebuildNotifier and rebuilds the scrollbars and the transform, but not the child.
override
buildUnKeyedChild(BuildContext context) → Widget
Gets the child. Child gets wrapped in a KeyedSubtree in buildChild.
createTicker(TickerCallback onTick) → Ticker
Creates a ticker with the given callback.
inherited
deactivate() → void
Called when this object is removed from the tree.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
didChangeDependencies() → void
Called when a dependency of this State object changes.
inherited
didUpdateWidget(covariant T oldWidget) → void
Called whenever the widget configuration changes.
inherited
dispose() → void
Called when this object is removed from the tree permanently.
override
gestureIsSupported(GestureType? gestureType, {bool outer = false}) → bool
inherited
getGestureType(ScaleUpdateDetails details) → GestureType
Decide which type of gesture this is by comparing the amount of scale and rotation in the gesture, if any. Scale starts at 1 and rotation starts at 0. Pan will have no scale and no rotation because it uses only one finger.
inherited
getNonCoveringZoomHorizontalTranslation(double scale) → double
Returns the translation to apply when the child is smaller than the viewport horizontally.
inherited
getNonCoveringZoomVerticalTranslation(double scale) → double
Returns the translation to apply when the child is smaller than the viewport vertically.
inherited
getScaled({double? scale, Offset? position, Matrix4? matrixZoomedNeedToApplyFocalPointTracking}) → Matrix4
inherited
getScrollbarController({required TickerProvider vsync, required TransformScrollbarWidgetInterface controlInterface}) → ScrollbarControllerEncapsulation
inherited
handleDoubleTap() → void
inherited
initState() → void
Called when this object is inserted into the tree.
inherited
matrixRotate(Matrix4 matrix, double rotation, Offset focalPoint) → Matrix4
Return a new matrix representing the given matrix after applying the given rotation.
inherited
matrixScale(Matrix4 matrix, double scale) → Matrix4
inherited
matrixTranslate(Matrix4 matrix, Offset translation) → Matrix4
Return a new matrix representing the given matrix after applying the given translation.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onAnimate() → void
Handle inertia drag animation.
inherited
onKey(KeyEvent event) → bool
Used to check if ctrl or shift for scrolling is pressed
inherited
onScaleAnimate() → void
Handle inertia scale animation.
inherited
onScaleEnd(ScaleEndDetails details, {bool outer = false}) → void
Handle the end of a gesture of _GestureType. All of pan, scale, and rotate are handled with GestureDetector's scale gesture.
inherited
onScaleStart(ScaleStartDetails details) → void
Handle the start of a gesture. All of pan, scale, and rotate are handled with GestureDetector's scale gesture.
inherited
onScaleUpdate(ScaleUpdateDetails details, {bool inner = false}) → void
Handle an update to an ongoing gesture. All of pan, scale, and rotate are handled with GestureDetector's scale gesture.
inherited
reassemble() → void
Called whenever the application is reassembled during debugging, for example during hot reload.
inherited
receivedPointerSignal(PointerSignalEvent event) → void
Handle mousewheel and web trackpad scroll events.
inherited
resetAnimation() → void
inherited
setScrollbarControllers() → void
Set the scrollbar controllers.
inherited
setState(VoidCallback fn) → void
Notify the framework that the internal state of this object has changed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringShort() → String
A brief description of this object, usually just the runtimeType and the hashCode.
inherited
updateTransform() → void
What should happen on transform change.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited